The MacKintosh Man (1973)

A member of British Intelligence assumes a fictitious criminal identity and allows himself to be caught, imprisoned, and freed in order to infiltrate a spy organization and expose a traitor; only, someone finds him out and exposes him to the gang...

Directed by: John Huston

Starring: Paul Newman, Dominique Sanda, James Mason, Harry Andrews, Ian Bannen, Michael Hordern

Links: IMDb, Movie posters, Movie stills